Description

A flaw was found in the Linux kernel. A denial of service problem is identified if an extent tree is corrupted in a crafted ext4 filesystem in fs/ext4/extents.c in ext4_es_cache_extent. Fabricating an integer overflow, A local attacker with a special user privilege may cause a system crash problem which can lead to an availability threat.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1972621

https://ubuntu.com/security/CVE-2021-3428

https://www.openwall.com/lists/oss-security/2021/03/17/1

Details

Risk Information

CVSS v2

CVSS v3